body{
    background-color: #21272e;
    width: 100%;
}

.footbox{
    width: 100%;
    height: 3em;
}

.footer{
    position: fixed;
    bottom: 0;
    left: 0;
    background-color: #2a313a;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
    label{
        width: 22%;
        .item1{
            width: 100%;
            .img1{
                background: url("../images/foot_01.png") no-repeat;
                background-size: 30px;
                width: 30px;
                height: 30px;
                margin: 0 auto;
                margin-top: 15px;
                margin-bottom: 10px;
            }
        }
        .item2{
            width: 100%;
            .img2{
                background: url("../images/foot_02.png") no-repeat;
                background-size: 30px;
                width: 30px;
                height: 30px;
                margin: 0 auto;
                margin-top: 15px;
                margin-bottom: 10px;
            }
        }
        .item3{
            width: 100%;
            .img3{
                background: url("../images/foot_03.png") no-repeat;
                background-size: 30px;
                width: 30px;
                height: 30px;
                margin: 0 auto;
                margin-top: 15px;
                margin-bottom: 10px;
            }
        }
        .item4{
            width: 100%;
            .img4{
                background: url("../images/foot_04.png") no-repeat;
                background-size: 30px;
                width: 30px;
                height: 30px;
                margin: 0 auto;
                margin-top: 15px;
                margin-bottom: 10px;
            }
        }
    }
    
    input{
        display: none;
    }
    #list1:checked + .a1 .item1 .img1{
        background:url("../images/foot_01-1.png") no-repeat;
        background-size: 30px;
        width: 30px;
        height: 30px;
        margin: 0 auto;
        margin-top: 15px;
        margin-bottom: 10px;
    }
    #list2:checked + .a2 .item2 .img2{
        background:url("../images/foot_02-1.png") no-repeat;
        background-size: 30px;
        width: 30px;
        height: 30px;
        margin: 0 auto;
        margin-top: 15px;
        margin-bottom: 10px;
    }
    #list3:checked + .a3 .item3 .img3{
        background:url("../images/foot_03-1.png") no-repeat;
        background-size: 30px;
        width: 30px;
        height: 30px;
        margin: 0 auto;
        margin-top: 15px;
        margin-bottom: 10px;
    }
    #list4:checked + .a4 .item4 .img4{
        background:url("../images/foot_04-1.png") no-repeat;
        background-size: 30px;
        width: 30px;
        height: 30px;
        margin: 0 auto;
        margin-top: 15px;
        margin-bottom: 10px;
    }
}

